Cita APA (7a ed.)

Dean, W. T. (1980). The ordovician system in the near and middle east: Correlation charts and explanatory notes. IUGS.

Cita Chicago Style (17a ed.)

Dean, William T. The Ordovician System in the Near and Middle East: Correlation Charts and Explanatory Notes. Ottawa, Canadá: IUGS, 1980.

Cita MLA (8a ed.)

Dean, William T. The Ordovician System in the Near and Middle East: Correlation Charts and Explanatory Notes. IUGS, 1980.